Device for removing static electricity from stock.



110.854,413. I EATENTED MAY 21, 1907.

4W. EULLAED 'C CM. IICNIIIIIVI.v DEVICE TCE EEMCVINC STATIC ELECTRICITY EECM STOCK;

APPLICATION IILBD IUNE5E1906. f

i- UNITED sTATns PATENT onrion.

.WILLIAM FULLARD, or rLAINFIELD, NEW'JERSEY, AND oI-IARLns M;

D oNI-IAM, 'or PORTLAND MAINE. y

DEVICE Fo'RnMovING STA-no ELEoTRlclTY FROM STOCK.

' Specification of Letters Patent.

\ Patented May 21, 1907.

Application filed .Tune 5,1906. Serial No. 320,283.

To fir/7J4 whont it may concern:

Beit known that we, WILLIAM FULLARD, a citizen of the United States, residing at Plainfield, county of Union, State of N ew Jersey, and CHARLES M. DONIIAM, a citizen 'ofthe United States, residing at Portland, in the county oi Cumberland, State of Maine, have invented a new and useful Device for Removing Static Electricity from Stock, of which the followingis a specification.

' Our Invention relates to a new and useful vapparatus for removing static electricity from paper, cloth or other material, or stock, which is fed to a machine and consists in applying heated air at a suitable time to the paper, cloth, etc. in its passage to or through the machine. l

It'further consists of novel details of construction a'll as will be hereinafter set forth.

Figure l representsfa partial elevationand partial sectional view of the apparatus embodying our invention, showing a portion of a..,machi`ne in connection therewith. Fig. 2 represents. aside elevation of a portion, of the device showing the same as applied toA sheets of paper or other material. Figs. 3 and 4 represent side elevations of 'portions of the device, showing its application to a continuous roll of material, or to stacks of sheets respectively.

Similar numerals 'of vreference' indicate corresponding parts in the iigures. y

Referring to the drawings it is well known that static electricity is present in paper, cloth, silk', cotton, etc., and in fact most any stock which is fed to machines for various purposes; and it is readily noticeable in paper for example, where two sheets will adhere together, `when an eii'ort is made to remove the upper or lower sheet and the loss due to this electricity is very' considerable and is not dependent upon the weather orv temperature..

We have shown in the drawing, a form of, apparatus for overc'oining or removing this staticelectricity and while we have shown certain featuresit willbe` evident that ch angesmay be made therein, in order to accomplish the saine result. We have also illustrated only a portion of a machine which may be a printing machine or otherwise, it being understood that the apparatus is adapted for use'for any kind of machines where .air compressor 5.' `said air compressor which is connected with stock is fed thereto and: where static electicity may exist.

In the drawings 1 designates a tank which is adapted-to contain air and in which is situ' ated a steam coil 2 which is in connection with a suitable source of steamsupply. Beneath the chamber or tank is a burner 3 which is adapted to assist in heating air in the tank and in the drawings we have shown the sides of thetank as extending below the burner as at 4in order to properly protect the same, although it will be understood `that ing or passage 6 forniinga communication between the interior of Athe said tank 1 and the 7 designates a piston in the crank shaft 8, the latter in this instance being supported on the standards or journals 9 carried by the air compressor 5 and said crank shaft 8 having suitable power imparted thereto through the pulleys 10 in any de-v sired manner.

Leading from the interior of the air tank 1 is a main air pipe 11 whichhas the extension 12 connected therewith, the same extending any distance as desired and having the pipe 13 in communication therewith at a suitable point which carries thedistributing air pipel '14 the latter in the present instance extending horizontally and being provided with they` l openings 15 in its lower face a suitable valve 16 controlling said distributingair pipe 14.

It will be understood that any desired number of these distributing pipes may be employed, it only being necessary to have -them communicate with the main vair pipe.

extension 12, so that said distributing pipe 14 may be located above any desired number of machines and all of said distributing pipes being supplied from thesame air tank if desired.

In the drawings we have shown a portion of a printing press' for example` which con- Ioo s ists of the Jframe 17 carrying the rolls 18` over which thestockis'passed in'its' assage p5 dimaturing pipeA i4, it'being geen that ifi-this mannerthefentire surface fofthe'pape'r-ref,

I' 'ceives ,the hotair-Which yis forced-from 'the i air tankxl by thel movement 'of 'the piston 7 through the .rio to 4the' distrig'utin'g 'pipe14, it-beingunderstood t-hat the.'valve'16l isproperly operated to permit this action# .The air in the tank 1 v can be heated thro-ugh by' the steam. pipes-'2.

or the burner 3 oiiy both in Order to supply f5 the desired temperatur/atp the air; i. `In Fig. 3A I have shown ra roll 2O'of stock such as' aper or the like, said stock receiving the ldisc arge of hot air'from'the pipe'14 in its passage through the machine and before 2o passing betweenthe rollers 21.1 l

In Iig. 4, We show the device as applied to stacks of paper-in the form offslieets. The

' distributingpipe '14 is -shov'fnas being situi ated over or aroundJtl-ie stacks in order to di- 25 rect'the hot air against the upper ,sheet or sides lof the stack 'before-it is removed from the stack in its passage through the machine. It Willbe seen therefore that the static electricity can be removed from .the stock at any 3o suitable time, either before it is set to the machine, or as it isgbeing fed, or in its pasy sage throughthemachine.

lIrIa'ving thus described our invention,v What Wervclaim as new and desire to secure by Let 35 ters-Patent iszef' u l1. In a deviceof the character described, a

hot air 'tank andmeans for discharging the stock as it is fed to or t ipes 11"and`"12'and the pipe 13 y tank, means'whereby the atmos heric ail,` is

heated pure atmospheric 'air over the surface v of the .stock as it fed-to'. or through the mai chine;

. 2. In a device of themcharacteil described, a tank, means' for compressing :the air in said v tank and for-'heatingr they airthereiri, land' means or dischargingl the air against the 3. In a device of the character described, a

heated Withoutv being mixed Wit rthe `prody vuct's of combustion, means for forcing the air l into and from said air tank and a distribut'- 5o A ing pipe in communication With said air tank for directinglthefhot air downwardly against thestock.

` 4. .In a device of the character described, a tank', heating devices therefor, means for 55 forcing air into and from said air tank, a distributing' pipe in communication Withvsaid air tank for directingthe heated pure atmospheric air against.. the stock, and means for controlling said distributing means. 6o

5. In a device ofthe character described, an airtank, means `for heating air therein, a pipe leading from the exterior of said tank, an air com ressor for forcing air into said tank, and t rough said pipe, an oiiset pipe 65 connecting said main pipe,'an air distributing pipe having openings therein for discharging the hot air against the stock, and means lfor controlling said distlibutinor pipe.

' WILLIAM FULLAtn C. M. DONHAM. Witnesses:

CHAs. KELLEY, E. J. BRANscoM.

rough'a machine. 2 4-5 ,i 

